Comparison

Tides Planner vs Memory

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tides Planner

Access worldwide tidal information for over 8,000 locations without an internet connection. Features include tidal graphs, weekly tables, sunrise/sunset times, and moon phases. Advanced tools help calculate optimal time windows for various water activities.

Highlights
  • Offline worldwide tide data
  • Tidal graphs and weekly tables
  • Sunrise, sunset, and moon phases
  • Time window calculations
  • Searchable location database
  • Currents information (select regions)
Features
Read full description

Essential TIDES tool for sailors, divers, canoeists, fishermen, surfers, swimmers, photographers and anyone involved with sport or leisure at the seaside. At the push of a button Tides Planner allows you to see tides for 8,000+ WORLDWIDE locations. NO CONNECTION REQUIRED as the app has its own database. One tap to tides for your favourites. Advanced users can take advantage of extensive tools to calculate time windows for entering/leaving and clearing depths. FEATURES - Tidal graphs - Week ahead tide table - Minimum/maximum depths - Chart depth/actual depth - Standard port information - Spinning globe for rapid location search - Search by name - Time of sunrise/sunset, dawn/twilight - Moon phases, rise/set - Date of spring/neap tides - Notepad and copy/paste + email - Favourites and recents - Scrolling scales - Coefficients (France) - Currents (UK, Ireland, North Sea, Netherlands and parts of the German coast) From version 3.0 enhanced predictions for Europe based on our own constituent analysis system. Other countries to follow. GEOGRAPHIC COVERAGE Worldwide coverage. Some countries have time limits from the national Hydrographic Office. TIME COVERAGE The app gives access to all its features, but the free initial download is limited to tides for one day. To get future predictions use the Extensions within the app (In App purchase): - Year on year: use the extensions within the app (In App purchases) to enable future predictions. - In certain countries get a Hydrographic Licence to remove restrictions. HYDROGRAPHIC OFFICE LICENCES During a valid year: - Italy, USA, Canada (main ports), Australia, New Zealand, Japan and other countries: ANY DAY in the year. - Denmark, Spain, Portugal, South Africa, Oman, Argentina: SEVEN DAYS at a time. The following can be extended with a Hydrographic Office Licence to remove country restrictions: - UK, Ireland, Germany and all UKHO ports: change from seven days to ANY DAY. - Netherlands: change from seven days to ANY DAY. - Belgium: change from seven days to ANY DAY. - France and SHOM ports: from one day to ANY DAY. Each Hydrographic Office Licence is ONLY PURCHASED ONCE and applies to all Valid Years. ABOUT US Imray: publishers of nautical charts, books and apps. Look out for other applications in the Marine Navigation Series from Imray. Follow us on Twitter: http://twitter.com/imray_charts Facebook/Imray-Laurie-Norie-Wilson-Ltd-304115312941493 LANGUAGES English, French, German, Italian, Spanish and Japanese ABOUT PREDICTIONS Predictions are based on the harmonic method, using constants from the Hydro offices (UKHO, SHOM, NOAA, BOM, CHS etc). There are differences between the app predictions and the official Hydro office tide tables, as these are based on large numbers of constants that are not made publicly available. The Hydro offices consider the harmonic methods used in this product appropriate for navigation. Always consult tidal curves and take into account local weather (pressure and wind) and swell conditions, which can have a very significant effect on sea water levels.

About

Memory

Navigate anywhere with offline maps and GPS. Access a vast library of global maps, plan routes, and track your journey without a mobile data connection. Sync data across devices for seamless planning and navigation.

Highlights
  • Offline GPS navigation
  • Downloadable global maps
  • Route planning and editing
  • 3D World map view
  • Interactive terrain elevation profiles
  • Cloud sync across devices
  • GPX file import/export
Read full description

Download maps for Offline GPS Navigation. No mobile data connection required. Your favorite maps and charts from OS, Hema, NOAA, and many more. Immersive 3D World map view Fully customizable map, data display and toolbar buttons. Powerful overlay data management, using nested categories and GPX files Backup and load maps from thumb drive. Use the same maps and sync your overlay data to other mobile devices and desktop computers Interactive Route Profile showing terrain elevation Track Altitude and Speed profile graphs Show terrain ascent, descent, max elevation and estimated time for planned route The Memory-Map for All app turns your phone or tablet into a full-featured Outdoor GPS or Marine Chart Plotter, and allows you to navigate with USGS Topo maps, NOAA Marine charts, and many other specialist maps, without needing a mobile internet signal. Maps are downloaded on-the-fly and can be pre-loaded in bulk, so they are ready to be used offline. Once the app and maps are loaded to the phone or tablet, cellular network coverage or internet connection is not required for real time GPS navigation. The Memory-Map for All app can be used as a standalone GPS navigator, but it can also be used in conjunction with the Windows PC or Mac app (free download) for planning, printing and loading up maps, waypoints and routes to the phone/tablet. Memory-Map for All includes free access to 1:250,000 scale topographic maps and many other free maps around the world. More detailed maps are available for download and purchase with a free try-before-you-buy, time-limited demo option. Available maps include Ordnance Survey, Hema, USGS quads, NOAA, UKHO, and DeLorme. Maps can be used on your PC as well as your phone and tablet. The Cloud Sync feature allows you to keep the overlay data consistent on all your devices. Features include: Access a vast range of Worldwide maps and charts. Automatically downloads a free map of your current location Create and edit marks and routes. Import and export marks, routes and tracks in the open GPX format Interactive graphs of terrain elevation, GPS Altitude and Speed profile Display; Position, Course, Speed, Heading, Altitude and averages Position coordinates include Lat/Long, UTM, GB Grid, Irish Grid, Military Grid. Units displayed in Statute, Nautical or Metric, with separate unit setting for Height Support for GPS and Compass sensors, where available. Placename search index can be used offline. Moving map, lock GPS position and automatically scroll the map Records breadcrumb trail / tracklogs. Share position marks, routes and tracklogs as GPX files Full marine instrumentation features, with AIS, DSC and Anchor alarm NMEA data interface via WiFi for marine instruments Barometer & relative altitude Import custom icons for POI Alarms for mark proximity, Anchor, Geofence or Exclusion zone, Crostrack error

Screenshots

Tides Planner3 screens
Memory4 screens

Verdict

The call

The clearest difference is review sentiment: Memory at 81% against Tides Planner's 39%. Memory also leads on rating (4.9 vs 3.8) and in-app purchases (none vs 10). Tides Planner's advantage is iOS requirement (11.0 vs 14.0). On price, ratings volume, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Tides Planner sells 10 one-off in-app purchases. Memory asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Memory holds the better App Store score, 4.9 against 3.8. Both are backed by a comparable volume of ratings — 17 and 10 respectively. Written reviews point the same way: 39% of Tides Planner's written reviews are positive against 81% of Memory's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Tides Planner versus Memory: the parameters behind the verdict, then further details
ParameterTides PlannerMemory
PriceFreeFree
Rating3.8 (17 ratings)4.9 (10 ratings) — better
Positive reviews38.8% of reviews81.3% of reviews — better
Number of ratings17 — better10
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size93 MB42 MB
Age rating4+4+
DeveloperFB Imray Laurie Norie & Wilson GmbHMemory-Map

Customer experience

Tides Planner

All ratings17 ratings
Positive64.7%
Neutral11.8%
Negative23.5%
Written reviews289 reviews
Positive38.8%
Neutral10.7%
Negative50.5%

Memory

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews123 reviews
Positive81.3%
Neutral11.4%
Negative7.3%

User reviews

Tides Planner

From 17 App Store ratings

What we love

  • 🚀 Accurate tide data
  • 💡 Detailed tidal information
  • 👍 Useful for sailing/fishing
  • 🚢 Great for commercial/recreational boating

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🚫 Unreliable map/location features
  • 💸 Expensive annual subscription
  • 👎 Confusing and unintuitive interface
  • 🕰️ Unable to view future tide data without paid upgrade

Memory

From 10 App Store ratings

What we love

  • 🗺️ Excellent map quality and detail
  • 📥 Offline map download capability
  • 💰 One-time purchase option (no subscription)
  • 🔄 Cross-device sync functionality
  • 🧭 Comprehensive navigation features

Room to improve

  • 🐛 App closing issues (swipe-up doesn't work properly)
  • 🚗 No Apple CarPlay integration
  • 🧩 Non-intuitive user interface
  • 🔄 Slow feature development over years
  • 📱 Dynamic Island compatibility issues

Bugs and requests

Tides Planner

Reported bugs

4 issues
  • Tide data inaccuracies
  • Crashes on startup
  • Inability to save/restore user preferences
  • Licensing issues preventing access to full features

Requested features

5 requests
  • Improved map/location functionality
  • Streamlined user interface
  • Ability to view tide data for multiple days without additional cost
  • Tidal current information
  • Sunrise/sunset data integration

Memory

Reported bugs

10 issues
  • App won't close properly with swipe-up gesture on iPhone
  • Startup error message about improper closure
  • Maps fail to download on new devices
  • GPS location not detected on iPad despite enabled settings
  • App switching gesture interferes with map centering
Show 5 more
  • Dynamic Island doesn't show navigation instructions
  • Zoom limits restrict detailed trail viewing
  • Auto map change on zoom behaves unexpectedly
  • Help function is inadequate/useless
  • Cut-and-paste doesn't work on Mac desktop application

Requested features

14 requests
  • Apple CarPlay support
  • Map auto-rotation to direction of travel
  • More custom waypoint icons (food drop, water source, campsite, etc.)
  • Better route optimization with more waypoints
  • Map orientation options (North-up vs. route-up)
Show 9 more
  • Postcode and OS grid reference search
  • Location beacon within software
  • More detailed maps for Australian regions (SA, NT)
  • Foreign/European map availability
  • Historical map access
  • Font size control for map labels
  • Bulk waypoint customization on import
  • Course heading-up feature
  • Built-in POI overlay list

In-app purchases

10 purchases

Tides Planner

One-time10
  • Tides 2012$1.99
  • Tides 2013$1.99
  • Tides 2014$1.99
Show 7 more
  • Tides 2020$3.99
  • Tides 2021$3.99
  • Tides 2015$3.99
  • Tides 2016$3.99
  • Tides 2017$3.99
  • Tides 2018$3.99
  • Tides 2019$3.99
None

Memory

No in-app purchases

Questions

Is Tides Planner free?
Tides Planner is free to download, with in-app purchases available.
Is Memory free?
Memory is free to download, with no in-app purchases.
Which has better reviews, Tides Planner or Memory?
Memory is rated higher. Tides Planner averages 3.8 out of 5 from 17 ratings, while Memory averages 4.9 from 10 ratings.
Do Tides Planner or Memory have ads?
Neither Tides Planner nor Memory shows ads.
Which is updated more often, Tides Planner or Memory?
Tides Planner ships an update every 3 months, and Memory every 3 months. Most recently, Tides Planner was updated on October 31, 2026 and Memory on November 3, 2026.

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